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#ifndef _ncvCornerDetectionOp_H_
#define _ncvCornerDetectionOp_H_

#include "ncvImage.h"

/**
 * \class CCornerDetectionOp
 * \brief Corner detection for CNokiaCVImages
 * \note Symbian TClass.
 */

class CCornerDetectionOp : public CImageOp
	{
public:
	/**
	 * \enum TCornerDetectionMethod
	 * \brief Different methods for edge detection. Only Moravec corner detector is implemented
	 *
	 * Possible values are:
	 *	- EMoravec
	 * \note Symbian TClass.
	 */
	IMPORT_C enum TCornerDetectionMethod
		{
		EMoravec
		};

	/**
	 * \brief Constructor
	 * \param aImage CNokiaCVImage to detect from
	 * \param aMethod Which corner detection method to use
	 * \param aNeighborhoodSize Size of the neighborhood to use for adaptive thresholding
	 * \param aConstant a constant value to subtract from the mean threshold
	 */
	IMPORT_C CCornerDetectionOp(CNokiaCVImage* aImage, TCornerDetectionMethod aMethod = EMoravec, TInt aNeighborhoodSize = 20, TInt aConstant = 25);
	/**
	 * \brief Do the actual operation
	 * \param aTarget CNokiaCVImage to store the result
	 * \note the function can leave
	 */
	IMPORT_C void DoOperation( CNokiaCVImage* aTarget);

private:
	void DoMoravecL(CNokiaCVImage* aTarget);
	TUint32 GetMoravecL(CPixelAccess* pa, TPoint aPoint);
	
	CNokiaCVImage*			iImage;
	CNokiaCVImage*			iTempImage;

	TCornerDetectionMethod	iMethod;
	TInt				iD;
	
	TUint				iMin;
	TUint				iMax;
	
	TUint32				iSum;
	
	TInt				iNeighborhood;
	TInt				iConstant;
	};

#endif

